CN203491499U - Core damage-resistant wire stripper used in live-line work - Google Patents

Abstract

The utility model provides a wire core damage-proof wire stripper for live work, which comprises an upper tong body, a lower tong body, a return spring, a handle, a connecting rod, an alarm, an adjusting nut, and a cutting knife. When the knife is fed, the alarm will sound when the tip of the knife just touches the wire core, which avoids cutting the wire core and causing damage to the wire core; when the position adjustment bolt is adjusted clockwise, the cutting knife will be driven by the spring to cut into the cable insulation , the tail of the cutting knife accurately points out the cutting depth on the scale, so that the operator can accurately control the cutting depth; the cable bracket fixes the cable in the cable groove, ensuring that the cutting knife can cut evenly at the same depth; so that the return spring does not work during work Offset or distortion occurs.

Description

Wire core damage prevention wire stripper for live work

technical field

The utility model provides a wire core damage-proof wire stripper for live work, which belongs to the field of cable wire strippers.

Background technique

With the continuous development of my country's electric power industry, there are more and more places where live work is required, and the requirements for live work are also rising. However, the work of live wire connection belongs to high-altitude work, the environment is very harsh, and the work object has high voltage. Under the premise of ensuring safety, the staff cannot strip the wire very carefully with the traditional wire stripper, which may easily lead to too deep cutting and damage to the wire core.

The current disadvantages of this technology are: first, it is easy to damage the wire core; second, it is impossible to accurately control the cutting depth; third, it is impossible to ensure that the cable sheath is cut evenly at the same depth.

Utility model content

The purpose of the utility model is to provide a wire core damage-proof wire stripper for live work, which does not damage the wire core during cutting, can precisely control the depth of the knife, and can cut evenly at the same depth.

The technical scheme adopted by the utility model to solve the technical problem is a wire core damage-proof wire stripper for live work, including an upper pliers body, a lower pliers body, a return spring, a handle, a connecting rod, an alarm, an adjusting nut, a cutting Knife, the head of the upper tong body and the lower tong body are hinged, the return spring is located between the upper tong body and the lower tong body, the connecting rod runs through the upper tong body and the lower tong body, one end of the connecting rod is threaded, and the handle is "9" Type handle, the unthreaded end of the connecting rod is hinged with the thicker end of the handle, and the two adjusting nuts move up and down through the thread at one end of the connecting rod to adjust and fix the distance between the upper and lower tongs, and the tail of the lower tongs is equipped with an alarm There is a knife groove on the side of the tail of the lower pliers body, and the cutting knife is located in the knife groove of the lower pliers body. The cutting knife includes a blade and a handle. When the cutting knife is placed horizontally, the end of the knife handle is flush with the side of the knife groove, and the side wall of the knife groove is set The cutting knife is fixed with bolts, the middle position of the cutting knife is connected with the knife groove through the fixing bolts, a spring is provided between the bottom of the cutting knife handle near the blade and the inner bottom of the knife groove, and a position adjustment bolt is set at the bottom of the knife groove corresponding to the end of the knife handle, and the alarm Both input and output are connected to the cutter.

The wire core damage prevention wire stripper for live work, when the knife is fed, the alarm will sound when the tip of the knife just touches the wire core, which avoids cutting the wire core and causing damage to the wire core.

In the wire core damage-proof wire stripper for live work, a scale is provided on the side where the knife slot is flush with the end of the knife handle. When the position adjustment bolt is adjusted clockwise, the cutting knife will be driven by the spring to cut into the cable insulation, and the tail of the cutting knife will accurately indicate the cutting depth on the scale, so that the operator can precisely control the cutting depth.

In the wire core damage-proof wire stripper for live work, a cable trough is provided in the middle of the upper pliers body, and a cable rack is provided at the tail of the lower pliers body corresponding to the cable trough of the upper pliers body. The cable bracket fixes the cables in the cable groove, which ensures that the cutting knife can cut evenly with equal depth.

The wire core damage-proof wire stripper for live work, the upper tong body is provided with a spring hole, the lower tong body is also provided with a spring hole corresponding to the position of the spring hole of the upper tong body, and the two ends of the return spring are respectively located at the spring hole of the upper tong body and the lower tong body. Inside the spring hole of the caliper body. So that the return spring does not deviate or twist during work.

Compared with the deficiencies of the prior art, the utility model has the beneficial effect that the wire core damage-proof wire stripper for live work, when the knife is fed, the alarm can sound when the tip of the knife just touches the wire core, Avoid cutting the wire core, resulting in damage to the wire core; when the position adjustment bolt is adjusted clockwise, the cutting knife will be driven by the spring to cut into the cable insulation, and the tail of the cutting knife accurately points out the cutting depth on the scale, so that the operator can precisely control the cutting Depth; the cable bracket fixes the cable in the cable groove, ensuring that the cutting knife can cut evenly at the same depth; so that the return spring does not shift or twist during work.

Description of drawings

Fig. 1 is a structural schematic diagram of an embodiment of the utility model.

In the figure: 1. Upper pliers body; 2. Lower pliers body; 3. Return spring; 4. Handle; 5. Connecting rod; 6. Alarm; 7. Adjusting nut; 8. Cutting knife; , ruler; 11, cable groove; 12, cable rack; 13, position adjustment bolt; 14, cutting knife fixing bolt.

Detailed ways

Below in conjunction with the utility model, the utility model embodiment is further described:

Wire core damage-proof wire stripper for live work, including upper clamp body 1, lower clamp body 2, return spring 3, handle 4, connecting rod 5, alarm 6, adjusting nut 7, cutting knife 8, upper clamp body 1 and lower clamp body The head of the pliers body 2 is hinged, the return spring 3 is located between the upper pliers body 1 and the lower pliers body 2, the connecting rod 5 runs through the upper pliers body 1 and the lower pliers body 2, one end of the connecting rod 5 is threaded, and the handle is "9" ” type handle, the unthreaded end of the connecting rod 5 is hinged with the thicker end of the handle 4, and the two adjusting nuts 7 move up and down through the thread at one end of the connecting rod 5 to adjust and fix the distance between the upper pliers body 1 and the lower pliers body 2, The tail of the lower pliers body 2 is provided with an alarm 6, the side of the tail of the lower pliers body 2 is provided with a knife groove 9, and the cutting knife 8 is located in the 2 knife grooves 9 of the lower jaw body. The cutting knife 8 includes a blade and a knife handle. , the end of the knife handle is flush with the side of the knife groove 9, the side wall of the knife groove 9 is provided with a cutting knife fixing bolt 14, the middle position of the cutting knife 8 is connected with the knife groove 9 through the fixing bolt, and the bottom of the cutting knife 8 knife handle is close to the knife edge and the knife groove 9 A spring is provided between the inner bottom, and a position adjustment bolt 13 is provided at the corresponding knife handle end at the bottom of the knife groove 9. There is a scale 10, a cable groove 11 is provided in the middle of the upper clamp body 1, a cable rack 12 is provided at the tail of the lower clamp body 2 corresponding to the cable groove 11 of the upper clamp body 1, a spring hole is provided on the upper clamp body 1, and a spring hole is arranged on the lower clamp body 2 Corresponding to the position of the spring hole of the upper tong body 1 is also provided with a spring hole, and the two ends of the return spring 3 are respectively located in the spring hole of the upper tong body 1 and the spring hole of the lower tong body 2.

Working principle and usage process:

1. Rotate the lower adjusting nut 7 to move the lower adjusting nut 7 downward;

2. Rotate the upper adjustment nut 7 to move the upper adjustment nut 7 downward, so that the return spring 5 opens, and pushes the upper clamp body 1 and the lower clamp body 2 to separate enough to allow the cable to enter the cable groove 11;

3. Pull the handle 4, and the "9" shaped handle will move up, so that the connection point will move up, and the connecting rod 5 will move up, so that the cable bracket 12 will fix the cable in the cable groove 11. If the handle 4 is pulled to the end, it still cannot Fix the cable, then rotate the adjusting nut 7 at the top, so that the adjusting nut 7 at the top moves upward until the distance between the upper clamp body 1 and the lower clamp body 2 shrinks to the cable holder 12 on the lower clamp body 2, which can fix the cable on the until the cable slot 11 on the upper clamp body 1, and then rotate the adjusting nut 7 located below, so that the adjusting nut 7 located below moves upward until it cannot be turned, so that the contact surfaces of the two adjusting nuts 7 rub against each other to ensure that the two adjusting nuts 7 fixed position;

4. Turn the position adjustment bolt 13 clockwise to move it down, and the spring will push the blade of the cutting knife 8 up to cut into the cable insulation until the tip of the knife just touches the wire core, and the voltage at the tip of the knife reaches the alarm 6. voltage, the alarm 6 sends an alarm sound, and now stops rotating the position adjustment bolt 13, rotates the cutting knife fixing bolt 14 clockwise, and fixes the cutting knife 8 cutting depth;

5. The anti-core damage stripper is used for rotating live work, so that the depth of the cable insulation can be cut evenly;

6. Pull the handle 4 clockwise to remove the wire core damage-proof wire stripper for live work from the cable, and complete the insulation cutting.

Claims (4)

1. A wire core damage-proof wire stripper for live work, characterized in that it includes an upper pliers body (1), a lower pliers body (2), a return spring (3), a handle (4), a connecting rod (5), Alarm (6), adjusting nut (7), cutting knife (8), the upper tong body (1) and the lower tong body (2) are hinged, and the return spring (3) is located between the upper tong body (1) and the lower tong body Between the body (2), the connecting rod (5) penetrates the upper tong body (1) and the lower tong body (2), and one end of the connecting rod (5) is provided with a thread, and the handle is a "9" handle, and the connecting rod (5 ) The unthreaded end is hinged with the thicker end of the handle (4), and the two adjustment nuts (7) move up and down through the threads at the end of the connecting rod (5) to adjust and fix the upper caliper body (1) and the lower caliper body (2) The distance between the lower pliers body (2) is provided with an alarm (6), the side of the lower pliers body (2) tail is provided with a knife groove (9), and the cutting knife (8) is located in the lower pliers body (2) knife groove ( 9), the cutting knife (8) includes a blade and a knife handle. When the cutting knife (8) is placed horizontally, the end of the knife handle is flush with the side of the knife groove (9), and the side wall of the knife groove (9) is provided with a cutting knife fixing bolt (14 ), the middle position of the cutting knife (8) is connected to the knife groove (9) through a fixing bolt, a spring is provided between the bottom of the knife handle of the cutting knife (8) close to the blade and the inner bottom of the knife groove (9), and the bottom of the knife groove (9) A position adjustment bolt (13) is provided at the end of the corresponding knife handle, and the input and output ends of the alarm (6) are connected to the cutting knife (8). 2. The wire core damage-proof wire stripper for live work according to claim 1, characterized in that a scale (10) is provided on the side of the knife groove (9) that is flush with the end of the knife handle. 3. The wire core damage-proof wire stripper for live work according to claim 1 or 2, characterized in that a cable groove (11) is provided in the middle of the upper clamp body (1), and the tail of the lower clamp body (2) corresponds to the upper A cable rack (12) is provided at the position of the cable groove (11) of the clamp body (1). 4. The wire core damage-proof wire stripper for live work according to claim 3, characterized in that the upper tong body (1) is provided with a spring hole, and the lower tong body (2) corresponds to the position of the spring hole of the upper tong body (1) A spring hole is also provided, and the two ends of the return spring (3) are respectively located in the spring hole of the upper tong body (1) and the spring hole of the lower tong body (2).